Transverse momentum and process dependent azimuthal anisotropies in√sNN=8.16 TeV p+Pb collisions with the ATLAS detector
The azimuthal anisotropy of charged particles produced in $$\sqrt{s_{\mathrm {NN}}}=8.16$$sNN=8.16 TeV p+Pb collisions is measured with the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 165 $$\mathrm {nb}^{-1}$$nb-1 that was collected in 2016. Azimut...
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| Hauptverfasser: | , , , , , , , , , , , , , |
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| Körperschaft: | |
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
30 January 2020
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| In: |
The European physical journal. C, Particles and fields
Year: 2020, Jahrgang: 80, Heft: 1 |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-020-7624-4 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1140/epjc/s10052-020-7624-4 Verlag, lizenzpflichtig, Volltext: https://link.springer.com/article/10.1140/epjc/s10052-020-7624-4 
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| Verfasserangaben: | ATLAS Collaboration |
| Zusammenfassung: | The azimuthal anisotropy of charged particles produced in $$\sqrt{s_{\mathrm {NN}}}=8.16$$sNN=8.16 TeV p+Pb collisions is measured with the ATLAS detector at the LHC. The data correspond to an integrated luminosity of 165 $$\mathrm {nb}^{-1}$$nb-1 that was collected in 2016. Azimuthal anisotropy coefficients, elliptic $$v_2$$v2 and triangular $$v_3$$v3, extracted using two-particle correlations with a non-flow template fit procedure, are presented as a function of particle transverse momentum ($$p_\mathrm {T}$$pT) between 0.5 and 50 GeV. The $$v_2$$v2 results are also reported as a function of centrality in three different particle $$p_\mathrm {T}$$pT intervals. The results are reported from minimum-bias events and jet-triggered events, where two jet $$p_\mathrm {T}$$pT thresholds are used. The anisotropies for particles with $$p_\mathrm {T}$$pT less than about 2 GeV are consistent with hydrodynamic flow expectations, while the significant non-zero anisotropies for $$p_\mathrm {T}$$pT in the range 9-50 GeV are not explained within current theoretical frameworks. In the $$p_\mathrm {T}$$pT range 2-9 GeV, the anisotropies are larger in minimum-bias than in jet-triggered events. Possible origins of these effects, such as the changing admixture of particles from hard scattering and the underlying event, are discussed. |
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| Beschreibung: | Gesehen am 17.07.2020 Im Titel steht der Ausdruck "sNN" unter dem Wurzelsymbol, "NN" ist dabei tiefgestellt ATLAS Collaboration: G. Aad, M. Dunford, S. Franchino, A. Krishnan, A. Kugel, F. Napolitano, A. Schoening, H.-C. Schultz-Coulon, T.M. Spieker, R. Stamen, P. Starovoitov, M.S. Weber, M. Wessels, X. Yue [und weitere] |
| Beschreibung: | Online Resource |
| ISSN: | 1434-6052 |
| DOI: | 10.1140/epjc/s10052-020-7624-4 |